I've wired ALOT of trailers in my day. I do not ground taillights to the frame at all. I run a ground wire from every light to the front. Every connection gets soldered and heat shrink. Also, do not ground the trailer through the hitch ball. Run a physical ground wire through the 4-pin or 7-pin connector, whichever you have. If I had to put a number on it, I'd say 99% of all trailer light problems I've ever came across were ground issues. The other 1% are broken wires or corroded connections. Oh, and never use those blue connectors that stab into another wire for power or ground. Those also have connection issues. Solder, solder, solder.
Someone should send the code memo to all the trailer builders. Seems like the guys doing wire on the rv stuff have a different code. My pace enclosed is nothing close to what I consider the right code. As you listed above.
Good info, thanks but actually the trailer is already wired right including the ground as you mentioned noxcuse, manly looking for the truck side of the hook up, will look around for that online, thanks.
Yes I have that Rod, but my truck has two others spliced in too, one for gooseneck and another one is the smaller round one plus the third one we all use for light trailers. So I need to get rid of the other two.
tnx
We use 4 and 6 pin commercial plugs at work and I am becoming a believer that the plastic rv plug has better connections. I have changed over AL my stuff to the rv style. And now have an adapter from rv to 4 flat or 6 round. All my bases covered with 1 adapter.